Interesting art and background, good background music, but I didn't quite understand how to play the game; it really could use some instructions. Congratulations on finishing the jam!
The idea is that you hatch the egg for seven minutes. Leaving the egg unattended or letting water touch it causes the heat meter (which is currently a timer) to fill up. If I get the chance, I'll make a video showcasing the gameplay. I plan to revisit this project in the future.